Power supply control device

Patent metadata

Field	Value
Publication number	US-9270104-B2
Application number	US-201414162848-A
Country	US
Kind code	B2
Filing date	Jan 24, 2014
Priority date	Mar 28, 2013
Publication date	Feb 23, 2016
Grant date	Feb 23, 2016

Abstract

The power supply control device of the present invention includes: a set of power reception conductors; a set of power supply conductors; a set of intermediate conductors electrically connected to the set of power reception conductors, respectively; a set of relays configured to make and break electrical connections between the set of intermediate conductors and the set of power supply conductors, respectively; a zero-phase current transformer positioned to allow the set of intermediate conductors to pass through an inside of the zero-phase current transformer; a control circuit for controlling the set of relays responding to a detection result of the zero-phase current transformer; and a body block including a first block and a second block fixed to the first block. The set of power reception conductors and the set of power supply conductors are fixed to the first block. The set of intermediate conductors is fixed to the second block.

First claim

The invention claimed is:

1. A power supply control device, comprising:
a set of power reception conductors for receiving power;
a set of power supply conductors for supplying power;
a set of intermediate conductors electrically connected to the set of power reception conductors, respectively;
a set of relays configured to make and break electrical connections between the set of intermediate conductors and the set of power supply conductors, respectively;
a zero-phase current transformer positioned to allow the set of intermediate conductors to pass through an inside of the zero-phase current transformer;
a control circuit configured to, upon detecting an electrical leakage by the zero-phase current transformer, control the set of relays to break the electrical connections between the set of intermediate conductors and the set of power supply conductors; and
a body block holding the set of power reception conductors, the set of power supply conductors, and the set of intermediate conductors,
wherein:
the body block includes a first block and a second block fixed to the first block;
the set of power reception conductors and the set of power supply conductors are fixed to the first block;
the set of intermediate conductors is fixed to the second block;
each of the set of power reception conductors is formed of a metal plate and includes a power reception terminal for receiving power; and
each of the power reception terminals of the set of power reception conductors has a shape allowing mechanical connection with a contact terminal of a predetermined plug.

2. The power supply control device according to claim 1 , wherein
the zero-phase current transformer is positioned between the first block and the second block.

3. The power supply control device according to claim 1 , further comprising a housing accommodating the body block,
wherein:
the first block is fixed to the housing; and
the second block is not fixed to the housing directly.

4. The power supply control device according to claim 1 , wherein
each of the set of power supply conductors is formed of a metal plate and includes a power supply terminal for supplying power; and
each of the power supply terminals of the set of power supply conductors has a shape allowing mechanical connection with a contact terminal of a predetermined plug.

5. The power supply control device according to claim 1 , wherein:
the set of power reception conductors is to be electrically connected to an external power source; and
the set of power supply conductors is to be electrically connected to a charging circuit for charging a battery of an automobile.

6. A power supply control device, comprising:
a set of power reception conductors for receiving power;
a set of power supply conductors for supplying power;
a set of intermediate conductors electrically connected to the set of power reception conductors, respectively;
a set of relays configured to make and break electrical connections between the set of intermediate conductors and the set of power supply conductors, respectively;
a zero-phase current transformer positioned to allow the set of intermediate conductors to pass through an inside of the zero-phase current transformer;
a control circuit configured to, upon detecting an electrical leakage by the zero-phase current transformer, control the set of relays to break the electrical connections between the set of intermediate conductors and the set of power supply conductors; and
a body block holding the set of power reception conductors, the set of power supply conductors, and the set of intermediate conductors,
wherein:
the body block includes a first block and a second block fixed to the first block;
the set of power reception conductors and the set of power supply conductors are fixed to the first block;
the set of intermediate conductors is fixed to the second block;
each of the set of power reception conductors is formed of a metal plate and includes a power reception terminal for receiving power;
each of the set of power reception conductors includes a first connection terminal and is embedded in the first block such that the power reception terminal and the first connection terminal are exposed; and
the set of intermediate conductors are electrically connected to the first connection terminals of the set of power reception conductors, respectively.

7. The power supply control device according to claim 6 , wherein
each of the set of power supply conductors:
is formed of a metal plate; and
includes a power supply terminal for supplying power.

8. The power supply control device according to claim 7 , wherein
each of the power supply terminals of the set of power supply conductors has a shape allowing mechanical connection with a contact terminal of a predetermined plug.

9. The power supply control device according to claim 7 , wherein:
each of the set of power supply conductors includes a second connection terminal and is embedded in the first block such that the power supply terminal and the second connection terminal are exposed;
the set of relays are interposed between the set of intermediate conductors and the second connection terminals of the set of power supply conductors, respectively.

10. The power supply control device according to claim 9 , wherein
each of the set of intermediate conductors
is formed of a metal plate,
includes a third connection terminal and a fourth connection terminal, and
is embedded in the second block such that the third connection terminal and the fourth connection terminal are exposed;

the third connection terminals of the set of intermediate conductors are electrically connected to the first connection terminals of the set of power reception conductors, respectively; and
the set of relays are interposed between the fourth connection terminals of the set of intermediate conductors and the second connection terminals of the set of power supply conductors, respectively.

11. The power supply control device according to claim 10 , further comprising a set of connection conductors,
wherein:
each of the set of connection conductors
is formed of a metal plate,
includes a fifth connection terminal and a sixth connection terminal, and
is embedded in the first block such that the fifth connection terminal and the sixth connection terminal are exposed;

the fourth connection terminals of the set of intermediate conductors are electrically connected to the fifth connection terminals of the set of connection conductors, respectively; and
the set of relays are interposed between the sixth connection terminals of the set of connection conductors and the second connection terminals of the set of power supply conductors, respectively.

12. The power supply control device according to claim 6 , wherein
the zero-phase current transformer is positioned between the first block and the second block.

13. The power supply control device according to claim 6 , further comprising a housing accommodating the body block,
wherein:
the first block is fixed to the housing; and
the second block is not fixed to the housing directly.

14. The power supply control device according to claim 6 , wherein
each of the set of power supply conductors is formed of a metal plate and includes a power supply terminal for supplying power; and
each of the power supply terminals of the set of power supply conductors has a shape allowing mechanical connection with a contact terminal of a predetermined plug.

15. The power supply control device according to claim 6 , wherein:
the set of power re

Assignees

• Panasonic Corp
• Panasonic Ip Man Co Ltd

Inventors

• Inagaki Noboru
• Nakamura Shinichi
• Akioka Takao

Classifications

• B60L2230/12

  Operations & Transport · mapped topic

• H02H3/16 Primary

  responsive to fault current to earth, frame or mass (with balanced or differential arrangement H02H3/26 {; monitoring earth connection H02H5/105}) · CPC title

• B60L3/04

  Cutting off the power supply under fault conditions (protective devices and circuit arrangements in general H01H; H02H) · CPC title

• B60L3/0069 Primary

  relating to the isolation, e.g. ground fault or leak current · CPC title

• B60L11/1809

  Operations & Transport · mapped topic